Pref/class (#58)

* feat: add class_list macro

* fix: ssr mode class_list

* pref: replace with class_list

src/alert/mod.rs

@@ -1,10 +1,8 @@
 mod theme;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     theme::use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Icon, Theme,
 };
 use icondata::AiIcon;
@@ -86,14 +84,8 @@ pub fn Alert(
         .into()
     });
 
-    let ssr_class = ssr_class(&class);
     view! {
-        <div
-            class=ssr_class
-            use:dyn_classes=class
-            class:thaw-alert=true
-            style=move || css_vars.get()
-        >
+        <div class=class_list!["thaw-alert", move || class.get()] style=move || css_vars.get()>
             <Icon icon class="thaw-alert__icon"/>
             <div>
 

src/auto_complete/mod.rs

@@ -1,10 +1,9 @@
 mod theme;
 
-use crate::utils::{dyn_classes, ssr_class};
 use crate::{
     components::{Binder, Follower, FollowerPlacement, FollowerWidth},
     use_theme,
-    utils::{mount_style, StoredMaybeSignal},
+    utils::{class_list::class_list, mount_style, StoredMaybeSignal},
     ComponentRef, Input, InputPrefix, InputRef, InputSuffix, Theme,
 };
 use leptos::*;
@@ -126,13 +125,10 @@ pub fn AutoComplete(
         comp_ref.load(AutoCompleteRef { input_ref });
     });
 
-    let ssr_class = ssr_class(&class);
     view! {
         <Binder target_ref=auto_complete_ref>
             <div
-                class=ssr_class
-                use:dyn_classes=class
-                class:thaw-auto-complete=true
+                class=class_list!["thaw-auto-complete", move || class.get()]
                 ref=auto_complete_ref
                 on:keydown=on_keydown
             >

src/avatar/mod.rs

@@ -1,10 +1,8 @@
 mod theme;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
@@ -35,14 +33,8 @@ pub fn Avatar(
     });
     mount_style("avatar", include_str!("./avatar.css"));
 
-    let ssr_class = ssr_class(&class);
     view! {
-        <span
-            class=ssr_class
-            use:dyn_classes=class
-            class:thaw-avatar=true
-            style=move || css_vars.get()
-        >
+        <span class=class_list!["thaw-avatar", move || class.get()] style=move || css_vars.get()>
             {move || {
                 let src = src.get();
                 (!src.is_empty()).then(|| view! { <img src=src/> })

src/badge/mod.rs

@@ -1,9 +1,6 @@
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
-
 use crate::{
     theme::use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
@@ -59,18 +56,13 @@ pub fn Badge(
             value.to_string()
         }
     });
-    let ssr_class = ssr_class(&class);
+
     view! {
         <div class="thaw-badge" style=move || css_vars.get()>
-            <div
-                class=ssr_class
-                use:dyn_classes=class
-                class="thaw-badge__sup"
-                class=("thaw-badge__sup--value", move || !dot.get() && !value.get().is_empty())
-                class=("thaw-badge__sup--dot", move || dot.get())
-            >
-                {move || value.get()}
-            </div>
+            <div class=class_list![
+                "thaw-badge__sup", ("thaw-badge__sup--value", move || ! dot.get() && ! value.get()
+                .is_empty()), ("thaw-badge__sup--dot", move || dot.get()), move || class.get()
+            ]>{move || value.get()}</div>
             {children()}
         </div>
     }

src/breadcrumb/breadcrumb_item.rs

@@ -1,22 +1,19 @@
 use super::use_breadcrumb_separator;
+use crate::utils::class_list::class_list;
 use leptos::*;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
-use crate::utils::ssr_class;
-
 #[component]
 pub fn BreadcrumbItem(
     #[prop(optional, into)] class: MaybeSignal<String>,
     children: Children,
 ) -> impl IntoView {
     let breadcrumb_separator = use_breadcrumb_separator();
-    let ssr_class = ssr_class(&class);
+
     view! {
         <li class="thaw-breadcrumb-item">
-            <span class=ssr_class use:dyn_classes=class class="thaw-breadcrumb-item__link">
-                {children()}
-            </span>
+            <span class=class_list![
+                "thaw-breadcrumb-item__link", move || class.get()
+            ]>{children()}</span>
             <span class="thaw-breadcrumb-item__separator">
                 {move || breadcrumb_separator.0.get()}
             </span>

src/breadcrumb/mod.rs

@@ -1,10 +1,9 @@
 mod breadcrumb_item;
 mod theme;
 
-use crate::utils::dyn_classes;
 use crate::{
     use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 pub use breadcrumb_item::BreadcrumbItem;
@@ -37,13 +36,11 @@ pub fn Breadcrumb(
         });
         css_vars
     });
-    let ssr_class = ssr_class(&class);
+
     view! {
         <Provider value=BreadcrumbSeparatorInjection(separator)>
             <nav
-                class=ssr_class
-                use:dyn_classes=class
-                class="thaw-breadcrumb"
+                class=class_list!["thaw-breadcrumb", move || class.get()]
                 style=move || css_vars.get()
             >
                 <ul>{children()}</ul>

src/button/mod.rs

@@ -1,13 +1,11 @@
 mod button_group;
 mod theme;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     components::{OptionComp, Wave, WaveRef},
     icon::*,
     theme::*,
-    utils::{mount_style, ssr_class, ComponentRef},
+    utils::{class_list::class_list, mount_style, ComponentRef},
 };
 pub use button_group::ButtonGroup;
 use leptos::*;
@@ -222,18 +220,17 @@ pub fn Button(
         callback.call(event);
     };
 
-    let ssr_class = ssr_class(&class);
     view! {
         <button
-            class=ssr_class
-            use:dyn_classes=class
-            class:thaw-button=true
-            class=("thaw-button--solid", move || variant.get() == ButtonVariant::Solid)
-            class=("thaw-button--text", move || variant.get() == ButtonVariant::Text)
-            class=("thaw-button--link", move || variant.get() == ButtonVariant::Link)
-            class=("thaw-button--round", move || round.get())
-            class=("thaw-button--circle", move || circle.get())
-            class=("thaw-button--disabled", move || disabled.get())
+            class=class_list![
+                "thaw-button", ("thaw-button--solid", move || variant.get() ==
+                ButtonVariant::Solid), ("thaw-button--text", move || variant.get() ==
+                ButtonVariant::Text), ("thaw-button--link", move || variant.get() ==
+                ButtonVariant::Link), ("thaw-button--round", move || round.get()),
+                ("thaw-button--circle", move || circle.get()), ("thaw-button--disabled", move ||
+                disabled.get()), move || class.get()
+            ]
+
             style=move || format!("{}{}", css_vars.get(), style.get())
             disabled=move || disabled.get()
             on:click=on_click

src/calendar/mod.rs

@@ -1,11 +1,9 @@
 mod theme;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     chrono::{Datelike, Days, Local, NaiveDate},
     use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Button, ButtonGroup, ButtonVariant, Theme,
 };
 use chrono::{Month, Months};
@@ -117,14 +115,9 @@ pub fn Calendar(
             *date = *date + Months::new(1);
         });
     };
-    let ssr_class = ssr_class(&class);
+
     view! {
-        <div
-            class=ssr_class
-            use:dyn_classes=class
-            class="thaw-calendar"
-            style=move || css_vars.get()
-        >
+        <div class=class_list!["thaw-calendar", move || class.get()] style=move || css_vars.get()>
             <div class="thaw-calendar__header">
                 <span class="thaw-calendar__header-title">
 
@@ -132,7 +125,8 @@ pub fn Calendar(
                         show_date
                             .with(|date| {
                                 format!(
-                                    "{} {}", Month::try_from(date.month() as u8).unwrap().name(),
+                                    "{} {}",
+                                    Month::try_from(date.month() as u8).unwrap().name(),
                                     date.year(),
                                 )
                             })

src/card/mod.rs

@@ -1,9 +1,7 @@
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     components::*,
     use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
@@ -59,9 +57,8 @@ pub fn Card(
     let header = store_value(card_header);
     let header_extra = store_value(card_header_extra);
 
-    let ssr_class = ssr_class(&class);
     view! {
-        <div class=ssr_class use:dyn_classes=class class="thaw-card" style=move || css_vars.get()>
+        <div class=class_list!["thaw-card", move || class.get()] style=move || css_vars.get()>
             <If cond=is_header>
                 <Then slot>
                     <div class="thaw-card__header">

src/checkbox/mod.rs

@@ -1,13 +1,11 @@
 mod checkbox_group;
 mod checkbox_item;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     components::*,
     icon::*,
     theme::use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 pub use checkbox_group::CheckboxGroup;
@@ -35,13 +33,13 @@ pub fn Checkbox(
         css_vars
     });
 
-    let ssr_class = ssr_class(&class);
     view! {
         <div
-            class=ssr_class
-            use:dyn_classes=class
-            class:thaw-checkbox=true
-            class=("thaw-checkbox--checked", move || value.get())
+            class=class_list![
+                "thaw-checkbox", ("thaw-checkbox--checked", move || value.get()), move || class
+                .get()
+            ]
+
             style=move || css_vars.get()
             on:click=move |_| value.set(!value.get_untracked())
         >

src/color_picker/mod.rs

@@ -1,11 +1,10 @@
 mod color;
 mod theme;
 
-use crate::components::{Binder, Follower, FollowerPlacement};
-use crate::utils::dyn_classes;
 use crate::{
+    components::{Binder, Follower, FollowerPlacement},
     use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 pub use color::*;
@@ -98,13 +97,10 @@ pub fn ColorPicker(
         on_cleanup(move || timer.remove());
     }
 
-    let ssr_class = ssr_class(&class);
     view! {
         <Binder target_ref=trigger_ref>
             <div
-                class=ssr_class
-                use:dyn_classes=class
-                class="thaw-color-picker-trigger"
+                class=class_list!["thaw-color-picker-trigger", move || class.get()]
                 on:click=show_popover
                 ref=trigger_ref
             >
@@ -189,8 +185,9 @@ fn ColorPanel(hue: ReadSignal<u16>, sv: RwSignal<(f64, f64)>) -> impl IntoView {
                 class="thaw-color-picker-popover__handle"
                 style=move || {
                     format!(
-                        "left: calc({}% - 6px); bottom: calc({}% - 6px)", sv.get().0 * 100.0, sv
-                        .get().1 * 100.0,
+                        "left: calc({}% - 6px); bottom: calc({}% - 6px)",
+                        sv.get().0 * 100.0,
+                        sv.get().1 * 100.0,
                     )
                 }
             >

src/divider/mod.rs

@@ -1,15 +1,13 @@
 use leptos::*;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
-use crate::utils::{mount_style, ssr_class};
+use crate::utils::{class_list::class_list, mount_style};
 
 #[component]
 pub fn Divider(#[prop(optional, into)] class: MaybeSignal<String>) -> impl IntoView {
     mount_style("divider", include_str!("./divider.css"));
-    let ssr_class = ssr_class(&class);
+
     view! {
-        <div class=ssr_class use:dyn_classes=class class="thaw-divider">
+        <div class=class_list!["thaw-divider", move || class.get()]>
             <div class="thaw-divider__line"></div>
         </div>
     }

src/grid/grid_item.rs

@@ -1,10 +1,7 @@
 use super::use_grid;
+use crate::utils::class_list::class_list;
 use leptos::*;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
-use crate::utils::ssr_class;
-
 #[component]
 pub fn GridItem(
     #[prop(default = MaybeSignal::Static(1u16), into)] column: MaybeSignal<u16>,
@@ -37,9 +34,9 @@ pub fn GridItem(
 
         style
     });
-    let ssr_class = ssr_class(&class);
+
     view! {
-        <div class=ssr_class use:dyn_classes=class class="thaw-grid-item" style=move || style.get()>
+        <div class=class_list!["thaw-grid-item", move || class.get()] style=move || style.get()>
             {children()}
         </div>
     }

src/grid/mod.rs

@@ -1,8 +1,6 @@
 mod grid_item;
 
-use crate::utils::dyn_classes;
-use crate::utils::ssr_class;
-
+use crate::utils::class_list::class_list;
 pub use grid_item::*;
 use leptos::*;
 
@@ -24,10 +22,9 @@ pub fn Grid(
         style
     });
 
-    let ssr_class = ssr_class(&class);
     view! {
         <Provider value=GridInjection::new(x_gap)>
-            <div class=ssr_class use:dyn_classes=class class="thaw-grid" style=move || style.get()>
+            <div class=class_list!["thaw-grid", move || class.get()] style=move || style.get()>
                 {children()}
             </div>
         </Provider>

src/image/mod.rs

@@ -1,9 +1,5 @@
 use leptos::*;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
-use crate::utils::ssr_class;
-
 #[component]
 pub fn Image(
     #[prop(optional, into)] src: MaybeSignal<String>,
@@ -35,11 +31,9 @@ pub fn Image(
         style
     };
 
-    let ssr_class = ssr_class(&class);
     view! {
         <img
-            class=ssr_class
-            use:dyn_classes=class
+            class=move || class.get()
             src=move || src.get()
             alt=move || alt.get()
             style=style

src/input/mod.rs

@@ -1,10 +1,8 @@
 mod theme;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     theme::{use_theme, Theme},
-    utils::{mount_style, ssr_class, ComponentRef},
+    utils::{class_list::class_list, mount_style, ComponentRef},
 };
 use leptos::*;
 pub use theme::InputTheme;
@@ -127,15 +125,14 @@ pub fn Input(
         comp_ref.load(InputRef { input_ref });
     });
 
-    let ssr_class = ssr_class(&class);
     view! {
         <div
-            class=ssr_class
-            use:dyn_classes=class
-            class="thaw-input"
-            class=("thaw-input--focus", move || is_focus.get())
-            class=("thaw-input--disabled", move || disabled.get())
-            class=("thaw-input--invalid", move || invalid.get())
+            class=class_list![
+                "thaw-input", ("thaw-input--focus", move || is_focus.get()),
+                ("thaw-input--disabled", move || disabled.get()), ("thaw-input--invalid", move ||
+                invalid.get()), move || class.get()
+            ]
+
             style=move || css_vars.get()
         >
             {if let Some(prefix) = input_prefix.and_then(|prefix| prefix.if_.then_some(prefix)) {

src/menu/menu_group.rs

@@ -1,8 +1,6 @@
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     theme::use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
@@ -22,14 +20,9 @@ pub fn MenuGroup(
         });
         css_vars
     });
-    let ssr_class = ssr_class(&class);
+
     view! {
-        <div
-            class=ssr_class
-            use:dyn_classes=class
-            class="thaw-menu-group"
-            style=move || css_vars.get()
-        >
+        <div class=class_list!["thaw-menu-group", move || class.get()] style=move || css_vars.get()>
             {label}
         </div>
         {children()}

src/menu/menu_item.rs

@@ -1,10 +1,7 @@
 use super::use_menu;
-
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     theme::use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
@@ -40,14 +37,15 @@ pub fn MenuItem(
         });
         css_vars
     });
-    let ssr_class = ssr_class(&class);
+
     view! {
         <div class="thaw-menu-item">
             <div
-                class=ssr_class
-                use:dyn_classes=class
-                class="thaw-menu-item__content"
-                class=("thaw-menu-item__content--selected", move || menu.0.get() == key.get())
+                class=class_list![
+                    "thaw-menu-item__content", ("thaw-menu-item__content--selected", move || menu.0
+                    .get() == key.get()), move || class.get()
+                ]
+
                 on:click=on_click
                 style=move || css_vars.get()
             >

src/menu/mod.rs

@@ -2,9 +2,7 @@ mod menu_group;
 mod menu_item;
 mod theme;
 
-use crate::utils::dyn_classes;
-use crate::utils::ssr_class;
-
+use crate::utils::class_list::class_list;
 use leptos::*;
 pub use menu_group::MenuGroup;
 pub use menu_item::*;
@@ -16,12 +14,9 @@ pub fn Menu(
     #[prop(optional, into)] class: MaybeSignal<String>,
     children: Children,
 ) -> impl IntoView {
-    let ssr_class = ssr_class(&class);
     view! {
         <Provider value=MenuInjection(value)>
-            <div class=ssr_class use:dyn_classes=class class="thaw-menu">
-                {children()}
-            </div>
+            <div class=class_list!["thaw-menu", move || class.get()]>{children()}</div>
         </Provider>
     }
 }

src/mobile/nav_bar/mod.rs

@@ -1,12 +1,10 @@
 mod theme;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     components::*,
     icon::*,
     use_theme,
-    utils::{mount_style, ssr_class, StoredMaybeSignal},
+    utils::{class_list::class_list, mount_style, StoredMaybeSignal},
     Theme,
 };
 use leptos::*;
@@ -48,14 +46,8 @@ pub fn NavBar(
         }
     };
 
-    let ssr_class = ssr_class(&class);
     view! {
-        <div
-            class=ssr_class
-            use:dyn_classes=class
-            class="thaw-nav-bar"
-            style=move || css_vars.get()
-        >
+        <div class=class_list!["thaw-nav-bar", move || class.get()] style=move || css_vars.get()>
             <If cond=MaybeSignal::derive(move || left_arrow.get() || !left_text.get().is_empty())>
                 <Then slot>
                     <div class="thaw-nav-bar__left" on:click=on_click_left>

src/popover/mod.rs

@@ -1,14 +1,13 @@
 mod theme;
 
-use std::time::Duration;
-
 use crate::{
     components::{Binder, Follower, FollowerPlacement},
     use_theme,
-    utils::{add_event_listener, dyn_classes, mount_style, ssr_class},
+    utils::{add_event_listener, class_list::class_list, mount_style},
     Theme,
 };
 use leptos::{leptos_dom::helpers::TimeoutHandle, *};
+use std::time::Duration;
 pub use theme::PopoverTheme;
 
 #[slot]
@@ -108,13 +107,10 @@ pub fn Popover(
         });
     });
 
-    let ssr_class = ssr_class(&class);
     view! {
         <Binder target_ref>
             <div
-                class=ssr_class
-                use:dyn_classes=class
-                class="thaw-popover-trigger"
+                class=class_list!["thaw-popover-trigger", move || class.get()]
                 ref=target_ref
                 on:mouseenter=on_mouse_enter
                 on:mouseleave=on_mouse_leave

src/radio/mod.rs

@@ -1,8 +1,6 @@
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     theme::use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
@@ -26,13 +24,12 @@ pub fn Radio(
         css_vars
     });
 
-    let ssr_class = ssr_class(&class);
     view! {
         <div
-            class=ssr_class
-            use:dyn_classes=class
-            class="thaw-radio"
-            class=("thaw-radio--checked", move || value.get())
+            class=class_list![
+                "thaw-radio", ("thaw-radio--checked", move || value.get()), move || class.get()
+            ]
+
             style=move || css_vars.get()
             on:click=move |_| value.set(!value.get_untracked())
         >

src/select/mod.rs

@@ -1,10 +1,9 @@
 mod theme;
 
-use crate::utils::dyn_classes;
 use crate::{
     components::{Binder, Follower, FollowerPlacement, FollowerWidth},
     theme::use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
@@ -108,13 +107,11 @@ where
             .map_or(String::new(), |v| v.label.clone()),
         None => String::new(),
     });
-    let ssr_class = ssr_class(&class);
+
     view! {
         <Binder target_ref=trigger_ref>
             <div
-                class=ssr_class
-                use:dyn_classes=class
-                class="thaw-select"
+                class=class_list!["thaw-select", move || class.get()]
                 ref=trigger_ref
                 on:click=show_menu
                 style=move || css_vars.get()

src/slider/mod.rs

@@ -1,12 +1,10 @@
 mod slider_label;
 mod theme;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     components::OptionComp,
     theme::use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
@@ -118,12 +116,9 @@ pub fn Slider(
     });
     on_cleanup(move || on_mouse_move.remove());
 
-    let ssr_class = ssr_class(&class);
     view! {
         <div
-            class=ssr_class
-            use:dyn_classes=class
-            class="thaw-slider"
+            class=class_list!["thaw-slider", move || class.get()]
             style=move || css_vars.get()
             on:click=on_mouse_click
         >

src/space/mod.rs

@@ -1,6 +1,4 @@
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
-use crate::utils::{mount_style, ssr_class};
+use crate::utils::{class_list::class_list, mount_style};
 use leptos::*;
 
 #[derive(Default)]
@@ -30,12 +28,9 @@ pub fn Space(
         SpaceGap::WH(width, height) => format!("{width}px {height}px"),
     };
 
-    let ssr_class = ssr_class(&class);
     view! {
         <div
-            class=ssr_class
-            use:dyn_classes=class
-            class="thaw-space"
+            class=class_list!["thaw-space", move || class.get()]
             style:gap=gap
             style:flex-direction=if vertical { "column" } else { "row" }
         >

src/spinner/mod.rs

@@ -1,14 +1,11 @@
 mod theme;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     theme::use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
-
 pub use theme::SpinnerTheme;
 
 #[derive(Default, Clone)]
@@ -54,12 +51,9 @@ pub fn Spinner(
         css_vars
     });
 
-    let ssr_class = ssr_class(&class);
     view! {
         <div
-            class=ssr_class
-            use:dyn_classes=class
-            class="thaw-spinner"
+            class=class_list!["thaw-spinner", move || class.get()]
             style=move || css_vars.get()
         ></div>
     }

src/switch/mod.rs

@@ -1,10 +1,8 @@
 mod theme;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     theme::use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
@@ -31,13 +29,13 @@ pub fn Switch(
         });
         css_vars
     });
-    let ssr_class = ssr_class(&class);
+
     view! {
         <div
-            class=ssr_class
-            use:dyn_classes=class
-            class="thaw-switch"
-            class=("thaw-switch--active", move || value.get())
+            class=class_list![
+                "thaw-switch", ("thaw-switch--active", move || value.get()), move || class.get()
+            ]
+
             style=move || css_vars.get()
             on:click=move |_| value.set(!value.get_untracked())
         >

src/table/mod.rs

@@ -1,10 +1,8 @@
 mod theme;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     theme::use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
@@ -43,14 +41,14 @@ pub fn Table(
 
         css_vars
     });
-    let ssr_class = ssr_class(&class);
+
     view! {
         <table
-            class=ssr_class
-            use:dyn_classes=class
-            class="thaw-table"
-            class=("thaw-table--single-row", move || single_row.get())
-            class=("thaw-table--single-column", move || single_column.get())
+            class=class_list![
+                "thaw-table", ("thaw-table--single-row", move || single_row.get()),
+                ("thaw-table--single-column", move || single_column.get()), move || class.get()
+            ]
+
             style=move || format!("{}{}", css_vars.get(), style.get())
         >
             {children()}

src/tabs/mod.rs

@@ -1,10 +1,8 @@
 mod tab;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     theme::use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
@@ -61,9 +59,9 @@ fn TabsInner(
     let label_list_ref = create_node_ref::<html::Div>();
 
     let children = children();
-    let ssr_class = ssr_class(&class);
+
     view! {
-        <div class=ssr_class use:dyn_classes=class class="thaw-tabs" style=move || css_vars.get()>
+        <div class=class_list!["thaw-tabs", move || class.get()] style=move || css_vars.get()>
             <div class="thaw-tabs__label-list" ref=label_list_ref>
                 <For
                     each=move || tab_options_vec.get()
@@ -74,9 +72,11 @@ fn TabsInner(
                         create_effect({
                             let key = key.clone();
                             move |_| {
-                                let Some(label) = label_ref.get() else { return;
+                                let Some(label) = label_ref.get() else {
+                                    return;
                                 };
-                                let Some(label_list) = label_list_ref.get() else { return;
+                                let Some(label_list) = label_list_ref.get() else {
+                                    return;
                                 };
                                 if key.clone() == value.get() {
                                     request_animation_frame(move || {

src/tabs/tab.rs

@@ -1,7 +1,5 @@
 use super::use_tabs;
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
-use crate::utils::{mount_style, ssr_class};
+use crate::utils::{class_list::class_list, mount_style};
 use leptos::*;
 
 #[derive(Clone)]
@@ -23,15 +21,10 @@ pub fn Tab(
         key: key.clone(),
         label,
     });
-    let ssr_class = ssr_class(&class);
+
     view! {
-        <div
-            class=ssr_class
-            use:dyn_classes=class
-            class="thaw-tab"
-            class=("thaw-tab--hidden", move || key != tabs.get_key())
-        >
-            {children()}
-        </div>
+        <div class=class_list![
+            "thaw-tab", ("thaw-tab--hidden", move || key != tabs.get_key()), move || class.get()
+        ]>{children()}</div>
     }
 }

src/tag/mod.rs

@@ -1,10 +1,8 @@
 mod theme;
 
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     theme::use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
@@ -73,9 +71,9 @@ pub fn Tag(
         });
         css_vars
     });
-    let ssr_class = ssr_class(&class);
+
     view! {
-        <div class=ssr_class use:dyn_classes=class class="thaw-tag" style=move || css_vars.get()>
+        <div class=class_list!["thaw-tag", move || class.get()] style=move || css_vars.get()>
             <span class="thaw-tag__content">{children()}</span>
         </div>
     }

src/typography/text.rs

@@ -1,8 +1,6 @@
-#[cfg(not(feature = "ssr"))]
-use crate::utils::dyn_classes;
 use crate::{
     use_theme,
-    utils::{mount_style, ssr_class},
+    utils::{class_list::class_list, mount_style},
     Theme,
 };
 use leptos::*;
@@ -26,13 +24,10 @@ pub fn Text(
         css_vars
     });
 
-    let ssr_class = ssr_class(&class);
     if code {
         view! {
             <code
-                class=ssr_class
-                use:dyn_classes=class
-                class="thaw-text thaw-text--code"
+                class=class_list!["thaw-text thaw-text--code", move || class.get()]
                 style=move || css_vars.get()
             >
                 {children()}
@@ -40,11 +35,7 @@ pub fn Text(
         }
         .into_any()
     } else {
-        view! {
-            <span class=ssr_class use:dyn_classes=class class="thaw-text">
-                {children()}
-            </span>
-        }
+        view! { <span class=class_list!["thaw-text", move || class.get()]>{children()}</span> }
         .into_any()
     }
 }

src/utils/class_list.rs

@@ -0,0 +1,186 @@
+#[cfg(not(feature = "ssr"))]
+use leptos::create_render_effect;
+use leptos::{Attribute, IntoAttribute, Oco, RwSignal, SignalUpdate, SignalWith};
+use std::{collections::HashSet, rc::Rc};
+
+pub struct ClassList(RwSignal<HashSet<Oco<'static, str>>>);
+
+impl ClassList {
+    pub fn new() -> Self {
+        Self(RwSignal::new(HashSet::new()))
+    }
+
+    pub fn add(self, value: impl IntoClass) -> Self {
+        let class = value.into_class();
+        match class {
+            Class::String(name) => {
+                self.0.update(move |set| {
+                    set.insert(name);
+                });
+            }
+            Class::FnString(f) => {
+                #[cfg(feature = "ssr")]
+                {
+                    let name = f();
+                    self.0.update(|set| {
+                        set.insert(name);
+                    });
+                }
+                #[cfg(not(feature = "ssr"))]
+                create_render_effect(move |old_name| {
+                    let name = f();
+                    if let Some(old_name) = old_name {
+                        if old_name != name {
+                            self.0.update(|set| {
+                                set.remove(&old_name);
+                                set.insert(name.clone());
+                            });
+                        }
+                    } else {
+                        self.0.update(|set| {
+                            set.insert(name.clone());
+                        });
+                    }
+                    name
+                });
+            }
+            Class::Fn(name, f) => {
+                #[cfg(feature = "ssr")]
+                {
+                    let new = f();
+                    self.0.update(|set| {
+                        if new {
+                            set.insert(name);
+                        }
+                    });
+                }
+                #[cfg(not(feature = "ssr"))]
+                create_render_effect(move |old| {
+                    let name = name.clone();
+                    let new = f();
+                    if old.is_none() {
+                        if new {
+                            self.0.update(|set| {
+                                set.insert(name);
+                            });
+                        }
+                    } else if old.as_ref() != Some(&new) {
+                        self.0.update(|set| {
+                            if new {
+                                set.insert(name);
+                            } else {
+                                set.remove(&name);
+                            }
+                        });
+                    }
+                    new
+                });
+            }
+        }
+
+        self
+    }
+}
+
+impl IntoAttribute for ClassList {
+    fn into_attribute(self) -> Attribute {
+        Attribute::Fn(Rc::new(move || {
+            self.0.with(|set| {
+                let mut class = String::new();
+                set.iter().enumerate().for_each(|(index, name)| {
+                    if name.is_empty() {
+                        return;
+                    }
+                    if index != 0 {
+                        class.push(' ');
+                    }
+                    class.push_str(name)
+                });
+                class.into_attribute()
+            })
+        }))
+    }
+
+    fn into_attribute_boxed(self: Box<Self>) -> Attribute {
+        self.into_attribute()
+    }
+}
+
+pub enum Class {
+    String(Oco<'static, str>),
+    FnString(Box<dyn Fn() -> Oco<'static, str>>),
+    Fn(Oco<'static, str>, Box<dyn Fn() -> bool>),
+}
+
+pub trait IntoClass {
+    fn into_class(self) -> Class;
+}
+
+impl IntoClass for String {
+    fn into_class(self) -> Class {
+        Class::String(self.into())
+    }
+}
+
+impl IntoClass for &'static str {
+    fn into_class(self) -> Class {
+        Class::String(self.into())
+    }
+}
+
+impl<T, U> IntoClass for T
+where
+    T: Fn() -> U + 'static,
+    U: ToString,
+{
+    fn into_class(self) -> Class {
+        Class::FnString(Box::new(move || (self)().to_string().into()))
+    }
+}
+
+impl<T> IntoClass for (&'static str, T)
+where
+    T: Fn() -> bool + 'static,
+{
+    fn into_class(self) -> Class {
+        Class::Fn(self.0.into(), Box::new(self.1))
+    }
+}
+
+impl<T> IntoClass for (String, T)
+where
+    T: Fn() -> bool + 'static,
+{
+    fn into_class(self) -> Class {
+        Class::Fn(self.0.into(), Box::new(self.1))
+    }
+}
+
+macro_rules! class_list {
+    ($($name:expr),+) => {
+        {
+            use crate::utils::class_list::ClassList;
+            ClassList::new()$(.add($name))+
+        }
+    };
+}
+pub(crate) use class_list;
+
+#[cfg(test)]
+mod tests {
+    use leptos::{create_runtime, Attribute, IntoAttribute};
+
+    #[test]
+    fn macro_class_list() {
+        let rt = create_runtime();
+        let class_list = class_list!("aa", ("bb", || true), move || "cc");
+        if let Attribute::Fn(f) = class_list.into_attribute() {
+            if let Attribute::String(class) = f() {
+                assert!(class.contains("aa"));
+                assert!(class.contains("bb"));
+                assert!(class.contains("cc"));
+            }
+        }
+        rt.dispose();
+    }
+}

src/utils/dyn_classes.rs

@@ -1,35 +0,0 @@
-use cfg_if::cfg_if;
-use leptos::{html::AnyElement, HtmlElement, MaybeSignal};
-
-pub fn dyn_classes(el: HtmlElement<AnyElement>, classes_signal: MaybeSignal<String>) {
-    cfg_if! {
-        if #[cfg(feature = "ssr")] {
-            let _ = el;
-            let _ = classes_signal;
-        } else {
-            use leptos::SignalGet;
-            let _ = el.dyn_classes(move || {
-                let classes = classes_signal.get();
-                if classes.is_empty() {
-                    return vec![];
-                }
-                classes
-                    .split_ascii_whitespace()
-                    .map(|class| class.to_string())
-                    .collect::<Vec<String>>()
-            });
-        }
-    };
-}
-
-pub fn ssr_class(class: &MaybeSignal<String>) -> String {
-    cfg_if! {
-        if #[cfg(feature = "ssr")] {
-            use leptos::SignalGetUntracked;
-            class.get_untracked()
-        } else {
-            let _ = class;
-            String::new()
-        }
-    }
-}

src/utils/mod.rs

@@ -1,6 +1,6 @@
 // mod callback;
+pub(crate) mod class_list;
 mod component_ref;
-mod dyn_classes;
 mod event_listener;
 mod mount_style;
 mod signal;
@@ -9,7 +9,6 @@ mod time;
 
 // pub use callback::AsyncCallback;
 pub use component_ref::{create_component_ref, ComponentRef};
-pub(crate) use dyn_classes::*;
 pub(crate) use event_listener::*;
 pub(crate) use mount_style::mount_style;
 pub use signal::SignalWatch;